Models for the relaxation of the structure of twisted bilayer materials have been proposed in [1]}, [2]}. A general and rigorous model for the relaxation of incommensurate multilayer materials was proposed in [3]} that also includes untwisted heterostructures which have moiré superlattices from lattice mismatch (such as untwisted \(\text{WSe}_2/\text{MoS}_2\) ) and trilayer systems which have more complex moiré of moiré structure [4]}.
